JP2005152655A5 - - Google Patents

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Publication number
JP2005152655A5
JP2005152655A5 JP2004342477A JP2004342477A JP2005152655A5 JP 2005152655 A5 JP2005152655 A5 JP 2005152655A5 JP 2004342477 A JP2004342477 A JP 2004342477A JP 2004342477 A JP2004342477 A JP 2004342477A JP 2005152655 A5 JP2005152655 A5 JP 2005152655A5
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JP
Japan
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JP2004342477A
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Japanese (ja)
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JP4897212B2 (ja
JP2005152655A (ja
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Priority claimed from US10/723,311 external-priority patent/US6989673B2/en
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Publication of JP2005152655A5 publication Critical patent/JP2005152655A5/ja
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Publication of JP4897212B2 publication Critical patent/JP4897212B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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JP2004342477A 2003-11-26 2004-11-26 Mrデータ収集中のrf電力蓄積を低減する方法及び装置 Expired - Lifetime JP4897212B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/723,311 US6989673B2 (en) 2003-11-26 2003-11-26 Method and apparatus to reduce RF power deposition during MR data acquisition
US10/723,311 2003-11-26

Publications (3)

Publication Number Publication Date
JP2005152655A JP2005152655A (ja) 2005-06-16
JP2005152655A5 true JP2005152655A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 2008-01-17
JP4897212B2 JP4897212B2 (ja) 2012-03-14

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Family Applications (1)

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JP2004342477A Expired - Lifetime JP4897212B2 (ja) 2003-11-26 2004-11-26 Mrデータ収集中のrf電力蓄積を低減する方法及び装置

Country Status (4)

Country Link
US (2) US6989673B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JP4897212B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE102004057310A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL1027583C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1585990A1 (en) * 2003-01-07 2005-10-19 Philips Intellectual Property & Standards GmbH High-frequency system for an mr apparatus with multiple transmit channels
US7671744B2 (en) * 2003-03-03 2010-03-02 Veroscan, Inc. Interrogator and interrogation system employing the same
JP2007526783A (ja) * 2003-06-30 2007-09-20 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Mriにおいて比吸収率(sar)を制御する装置及び方法
DE102004045691B4 (de) * 2003-10-27 2009-10-01 Siemens Ag Verfahren zum Erzeugen eines homogenen hochfrequenten Magnetfelds in einem räumlichen Untersuchungsvolumen einer Magnetresonanzanlage
US7053618B2 (en) * 2003-11-26 2006-05-30 General Electric Company Method and apparatus to generate an RF excitation consistent with a desired excitation profile using a transmit coil array
DE102004002009B4 (de) * 2004-01-14 2006-07-06 Siemens Ag Verfahren zum Betrieb eines Magnetresonanzsystems, Magnetresonanzsystem und Computerprogrammprodukt
DE102004013422B4 (de) * 2004-03-18 2009-02-19 Siemens Ag Verfahren zur Homogenisierung eines B1-Felds, Magnetresonanzsystem und Computerprogrammprodukt
US7619413B2 (en) 2004-05-04 2009-11-17 The General Hospital Corporation Transmit-receive array for high field MRI
US7307419B2 (en) * 2004-12-20 2007-12-11 General Electric Company Method and system for spatial-spectral excitation by parallel RF transmission
DE102005007895B4 (de) * 2005-02-21 2016-06-30 Siemens Healthcare Gmbh Verfahren zur Kontrolle einer Hochfrequenzeinrichtung, Magnetresonanztomographiesystem und Hochfrequenz-Kontrolleinrichtung
US8368399B2 (en) * 2005-05-05 2013-02-05 New York University Mode-scanning excitation magnetic resonance imaging method and system
JP4822850B2 (ja) 2006-01-16 2011-11-24 株式会社日立製作所 磁気共鳴測定方法
US7385396B2 (en) * 2006-04-20 2008-06-10 General Electric Company SAR reduction in MR imaging with parallel RF transmission
WO2007124245A1 (en) * 2006-04-21 2007-11-01 Koninklijke Philips Electronics, N.V. Magnetic resonance with time sequential spin excitation
US7990149B2 (en) * 2006-04-21 2011-08-02 Koninklijke Philips Electronics N.V. MR involving high speed coil mode switching between I-channel linear, Q-channel linear, quadrature and anti-quadrature modes
US7508214B2 (en) * 2007-05-21 2009-03-24 Medrad, Inc. Transmit-mode phased array coils for reduced SAR and artifact issues
US7889046B2 (en) 2007-10-02 2011-02-15 Advanced Magnet Lab, Inc. Conductor assembly formed about a curved axis
US7616000B2 (en) * 2007-11-15 2009-11-10 General Electric Company Ultra low output impedance RF power amplifier for parallel excitation
DE102007059522B4 (de) * 2007-12-11 2009-09-17 Siemens Ag Magnetresonanzanlage mit verlustleistungsoptimiertem Betrieb
DE102008004256B4 (de) 2008-01-14 2010-01-07 Siemens Aktiengesellschaft SAR-optimierte Ansteuerung eines Spulenarrays
US8169219B2 (en) * 2008-03-05 2012-05-01 University Of Utah Research Foundation Slice selective MRI excitation with reduced power deposition using multiple transmit channels
DE102008015054B3 (de) * 2008-03-19 2010-01-28 Universitätsklinikum Freiburg MR-Verfahren zur selektiven Anregung
WO2009118702A2 (en) * 2008-03-27 2009-10-01 Koninklijke Philips Electronics N.V. Flip angle imaging with improved b1 mapping for multi-rf transmit systems
US8941380B2 (en) * 2008-04-16 2015-01-27 Koninkijke Philips N.V. Real-time local and global SAR estimation for patient safety and improved scanning performance
US7808240B2 (en) * 2008-04-30 2010-10-05 General Electric Company Apparatus and method for optimizing the spectra of parallel excitation pulses
DE102008029175B4 (de) * 2008-06-19 2010-09-30 Siemens Aktiengesellschaft Verfahren zur Ermittlung einer Pulssequenz zur Ansteuerung einer Hochfrequenz-Sendespule
US8736265B2 (en) * 2008-09-17 2014-05-27 Koninklijke Philips N.V. B1-mapping and B1L-shimming for MRI
US8148985B2 (en) * 2008-10-15 2012-04-03 Massachusetts Institute Of Technology Method for reducing maximum local specific absorption rate in magnetic resonance imaging
DE102008061455B4 (de) * 2008-12-10 2011-03-17 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur Bestimmung einer vorbestimmten Signalamplitude bei MR-Messungen
JP2010207568A (ja) * 2009-02-10 2010-09-24 Toshiba Corp 磁気共鳴イメージング装置
DE102009014924B3 (de) * 2009-03-25 2010-09-16 Bruker Biospin Mri Gmbh Rekonstruktion von Spektral- oder Bilddateien bei simultaner Anregung und Detektion in der Magnetischen Resonanz
CN102428382B (zh) * 2009-04-02 2015-02-25 皇家飞利浦电子股份有限公司 通过k空间相关rf脉冲选择来降低并行发射中的sar
US8198891B2 (en) * 2009-06-15 2012-06-12 General Electric Company System, method, and apparatus for magnetic resonance RF-field measurement
CN101968535B (zh) * 2009-07-28 2015-12-16 西门子(深圳)磁共振有限公司 体线圈组件以及利用体线圈组件产生射频场的方法
WO2011033402A1 (en) * 2009-09-17 2011-03-24 Koninklijke Philips Electronics N.V. Concurrent optimization of rf power and rf field uniformity in mri
US8938281B2 (en) 2009-10-02 2015-01-20 Koninklijke Philips N.V. MR imaging using multi-channel RF excitation
US8354844B2 (en) * 2009-12-23 2013-01-15 Universitaetsklinikum Freiburg Method for data acquisition acceleration in magnetic resonance imaging (MRI) with N-dimensional spatial encoding using two or more receiver coil arrays and non-linear phase distributions
JP5868028B2 (ja) * 2010-05-27 2016-02-24 株式会社東芝 磁気共鳴イメージング装置
US9588203B2 (en) * 2010-12-07 2017-03-07 New York University Apparatus, method and computer-accessible medium for determination of electrical properties of tissues and materials using multiple radio frequency measurements
DE112011104494B4 (de) * 2010-12-21 2025-07-03 Regents Of The University Of Minnesota Verfahren zur Reduzierung der deponierten Leistung bei Magnetresonanz- Tomografie unter Verwendung von Vielband-Pulsen und Vielkanal-Übertragung
CN103443644B (zh) * 2011-03-03 2016-03-30 皇家飞利浦有限公司 使用准连续rf辐照的磁共振
DE102011006872A1 (de) * 2011-04-06 2012-10-11 Siemens Aktiengesellschaft Sendeeinrichtung zur Ansteuerung einer Hochfrequenzantenne einer Magnetresonanzeinrichtung, Leistungsverstärkereinheit und Verfahren zur Erzeugung eines amplitudenmodulierten Zielsignals
US8653818B2 (en) * 2011-04-08 2014-02-18 Siemens Aktiengesellschaft Parallel transmission RF pulse design with local SAR constraints
US9086446B2 (en) * 2011-11-29 2015-07-21 General Electric Company Method and system for B1 field mapping in magnetic resonance imaging
DE102012203453B4 (de) * 2012-03-05 2014-07-03 Siemens Aktiengesellschaft Verfahren zur Ermittlung eines Satzes von B1-Feldkarten
DE102012212376B3 (de) 2012-03-20 2013-08-08 Siemens Aktiengesellschaft Ermittlung einer Magnetresonanzsystem-Ansteuersequenz
DE102012205297B4 (de) * 2012-03-30 2015-02-12 Siemens Aktiengesellschaft Ermittlung einer Magnetresonanzsystem-Ansteuersequenz und Verfahren zum Betrieb eines Magnetresonanzsystems
KR101967241B1 (ko) 2013-01-16 2019-04-09 삼성전자주식회사 무선 주파수 코일 장치, 이를 채용한 자기 공명 장치, 및 무선 주파수 코일 장치의 작동방법
JP6351640B2 (ja) * 2013-03-13 2018-07-04 コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. 磁気共鳴イメージング用の多素子rf送信コイル
JP6227270B2 (ja) * 2013-04-09 2017-11-08 株式会社日立製作所 磁気共鳴イメージング装置および磁気共鳴イメージング方法
CN105308471B (zh) * 2013-06-17 2018-12-18 皇家飞利浦有限公司 磁共振成像对象支撑物
DE102014211137A1 (de) * 2014-06-11 2015-12-17 Siemens Aktiengesellschaft Magnetresonanzeinrichtung
EP3504834B1 (en) * 2016-09-26 2023-02-22 Samsung Electronics Co., Ltd. Method and terminal for communication in next-generation mobile communication system
US11231476B2 (en) * 2019-04-26 2022-01-25 Regents Of The University Of Minnesota Accelerated magnetic resonance imaging acquisition using two-dimensional pulse segments as virtual receivers

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4682112A (en) * 1984-10-10 1987-07-21 Elscint Ltd. NMR antenna and method for designing the same
US4689563A (en) * 1985-06-10 1987-08-25 General Electric Company High-field nuclear magnetic resonance imaging/spectroscopy system
US4782298A (en) * 1987-09-01 1988-11-01 The Regents Of The University Of California MRI QD RF coil having diode switched detuning circuit producing reduced artifact
US5349296A (en) * 1993-07-09 1994-09-20 Picker International, Inc. Magnetic resonance scan sequencer
US5758646A (en) * 1994-09-12 1998-06-02 U.S. Philips Corporation Magnetic resonance imaging method with pulse sequence optimization and device for such method
IL119558A (en) * 1996-11-04 2005-11-20 Odin Technologies Ltd Multi-probe mri/mrt system
US6636038B1 (en) * 1997-05-28 2003-10-21 Siemens Aktiengesellschaft Method and apparatus for controlling a pulse sequence in a magnetic resonance tomography system
JPH11253416A (ja) * 1998-03-09 1999-09-21 Toshiba Corp 磁気共鳴イメージング装置
JP3732365B2 (ja) * 1999-09-08 2006-01-05 ジーイー横河メディカルシステム株式会社 スピン励起方法および装置並びに磁気共鳴撮像装置
US7081750B1 (en) * 2000-05-11 2006-07-25 Fonar Corporation Dynamic real-time magnetic resonance imaging sequence designer
US6618609B2 (en) * 2001-03-30 2003-09-09 Koninklifke Philips Electronics, N.V. Flow adaptive guided determination of imaging parameters for 3D magnetic resonance angiography
US6411090B1 (en) * 2001-07-02 2002-06-25 Ge Medical Systems Global Technology Company, Llc Magnetic resonance imaging transmit coil
DE60235763D1 (de) * 2001-08-21 2010-05-06 Koninkl Philips Electronics Nv Magnetresonanzgerät mit anregungsantennensystem
DE10155790B4 (de) * 2001-11-14 2005-04-07 Siemens Ag Magnet-Resonanz-Bildgebung unter Verwendung einer interaktiven Kontrastoptimierung
CN100414316C (zh) * 2001-11-26 2008-08-27 皇家飞利浦电子股份有限公司 能降低声学噪声的磁共振成像方法
US6879158B2 (en) * 2002-05-17 2005-04-12 General Electric Company Method for accelerating focused excitation with multiple RF transmit coils
DE10354941B4 (de) * 2002-12-02 2010-05-12 Siemens Ag Bestimmung der B1-Feldstärke bei MR-Messungen

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